Truck side frame



June 19, 1928.

E. EISELT TRUCK SIDE FRAME Filed June 9, 1923 2 Sheets-Sheet vehicles, and more particularly to new Patented June 19, 1928.

UNITED STAT EMIL EISELT, OF BALI'IIIVIORE, MARYLAND.

T .TRUGK SIDE FRAME.

Application filed June 9, 1923. Serial No. 644,481.

The invention relates to trucks for railway and useful improvements in the construction of truck side frames. i

The principal object of the invention, generally considered, is to improve theconstruction of arch bar side frames. To this end the main feature of my invention consists in interposing between the compression and ten. sion members or barsof an arch bar side frame astrut embodying as an integral. casting upper and lower membersconnected by column portions which completely enclose the bolster opening, the said, strut being rigidly connected to the arch bars and the latter having interlocking connections at points intermediate their ends.

Another obj ectof the invention resides in the interlocking connection between the compression and tension members'of the side frame at points intermediatethe ends thereof. Still another objectconsists in providing a strut member having integral top and column portions, the said "column portionshaving alined openings to receive one of the arch bars. I

sists in combining with the tension and com pression members of a truck side'frame 'a combined strut, bolster guide and spring seat casting, the latter being, of hollow box section and adapted to be. interlockingly connected to adjacent l portionsof thesaid arch bars.v i

There are other objects ofthe inventionas will hereinafter appear from the detaileddescription vof the two embodiments thereof which are illustrated in the. accompanying drawings, the novel features thereof being pointed out inthe claims at the end of the specification. v j

Referring now to thedrawings,- V Figure 1 is a'evie w partially in side elevation and partially in vertical section of a truck side frame constructed in accordance with my invention, the journal boxes and wheels being diagrammatically illustrated by. dot and dash lines. 1

' Figure 2 is a top plan view of the con: strnction shown in Fig. 1. Figure 3 is atransverse vertical sectional View takensubstantial-ly on the'l-ine'3'3.of Fig. 1, the direction of view-beingindicated by the arrows adjacent section line. e

tion. 1 Figure ,8 is a transverse vertical sectional view ofthe construction shown in Fig. 7, the

A still further object of the invention cone the columns 6.

the ends of-thesaid I 16. Thefiangesl i are adapted to extend Figure 4 is a transverse horizontal sectional view on the line 4'-i of Fig. l, the direction of View being indicated by the arrows adjacent the ends of the said section line. v

Figure 5 is a transverse vertical sectional view taken on the line 5-5 of Fig. 1, the direction of view being indicated by the arrows adjacent the. ends of the said section line.

Figure 6 is a transverse vertical sectional view through the arch bars at a point direct-ly over the journal box indicated by the section lines6-6 in Fig. lshowing the interlocking connection between the'bars at-thispoint.

Figure 7 1s a fragmentary view 'similarto Fig.1, showing a sllghtly modified construc- 'view being taken on the line8-8 of Fig. v7,

looking in the direction indicated by the arrows- Figure 9 is .a transverse horizontal sec-' tional view taken on the line 9-9 of Fig. 7. 'lhroughout the several views like parts are designated by like reference characters. The side frame preferably comprises an upper arch bar or compression member :1, a 3 lower arch bar or tensionmember 2, astrut 3, and pedestal tiebars 4." j The strut 3 is preferably formed as an integral casting andcomprisesa top member 5, columns 6, 6, and abottom member or:

spring seat portion 7. The top member 5 is preferably of substantially I-beam or ,chan nel form having a web 8 and fianges' 9, the said flanges merging into the flanges of and being integrally connected to the webs 10 of the columns 6. The webs 1O terminate at pointsspaced from theweb 8 to provide recesses 11, 11 through which the arch bar oncompression member 1 is adapted to extend Adjacentthe lower ends of the, webs 1O thereare provided'outstanding upwardly] inclinedfianges 12 which extendrespectively :from the outer faces of the said webs. Eachfiange 12 is preferably reinforced ibylani upright? centrally arranged fiange l3 and may be integrally connected to theflangesf-l i of On its under face the springseat portion 7 is. formed witha plurality of curved portions15 which merge adj acent, the center line of the'truclrintoa reversely curved portion 1 outwardly beyond and downwardly beneath the portions and 16. The outwardly pro jecting portions of the flanges on opposite sides of the said strut are adapted to receive and to be connected to the downturned flanges 17 of the pedestal tie bars Preferably at or near the center line of the side frame the web 8 provided with a centrally arranged downwardly opening re cess or depression 18 the purpose and object of which will be hereinafter described.

Adjacent their outer ends and preferably at a point immediately above the verti *al center line of the journal boxes the arch bars are provided with interlocking bosses and recesses 19 and 20.

In the particular modification here illustrated the compression member or upper arch is formed at its center with a curved boss or portion 21 adapted. to seat within the correspondingly curved portion 18 of the vein 8. These portions of the arch bar and compressi on member form an interlocking connection therebetween and assist in maintaining the parts in proper assembled position. To prevent separa ion of the interlocked portions they are rigidly connected to each other by means of a rivet If desired a plurality of rivets may be employed for connecting the adjacent portions of the upper arch bar or tension member to the adjacent web 8 of the combined top member, bolster column and spring seat casting.

The lower arch bar or tension member is provided adjacent its center with a plurality of curved portions 23 and 2 which are ada ted res ectivel to en a e the correspondingly curved portions 15 and 16, and conveniently the arch bar is connected to the spring seat by means ofa rivet or other suitable fastening means 25 which extends through the -centering boss 26 and through the arch bar or tansion member 2. It is to be I observed that the tension member is adapted to engage the faces of the flanges 12 and lies'v between the flanges 14 or the extensions thereof.

To reinforce and strengthen the lateral extensions 27, 27 and spring seat I preferably provide marginal flanges 28 which project outwardly from the web 10 of the column 6.

Referring now to Figs. 7 to 9, inclusive, it will be seen that the combined top member, bolster column and spring seat casting is substantially the same in construction as that illustrated in Figs. 1 to 6, inclusive, the only dissimilarity between the constructions here shown and that previously described being as follows: v I i r l n The upper member 29 of the strut is of channel shape having downwardly extending flanges 30 between which and the web 31 ofthe said strut member the upper arch bar or compression member 7 32 is adapted to be located. Ad acent the lower face of the enses spring seat portion there provit J. asingle curved portion 33 against which the lower tension or arch bar member is adapted to engage and to which this member is connected by means of a rivet or other suitable fastening means 34.

In both constructions I have illustrated the colunm members as being provided with integral brake hanger brackets 35, and have shown as applied to the vertical faces r j he column portions bolster wear pads to increase the resistance to wear at the point of maximum relative movement between the her, having intermediate said flanges a curved portion adapted to seat upon said tension member, said strut also overlying the adjacent portion of said con'ipression n1e1nber, means for connect-mg said members to said strut, and means for interlockingly connecting said tension and compression members intermediate the ends thereof'p 2. In a truck side frame, the combination with a tension member and a compression member, of a combined bolster guise member and strut, said member having a curved seat portion for said tension member and being further provided with curved por tions adapted tointerlockingly ei'igage correspondingly formed portions of said tension and compression members, and means for connecting said members. adjacent said interlocking portions. 3. In a truck side frame, the comb1nation with upper and lower arch bars, of a strut interposed between the same, said strut comprising a hollow box member, portions of said strutenclosing portions of each of said arch bars, portions of said strut below said upper arch bar beingspaced therefroinyand means formed on the strut and arch bars for interlockingly connecting the same.

4t. In a truck side frame, the combination with upper and lower arch bars, of "a strut interposed therebetween, said strut comprising a top member having a web and flanges depending therefrom, column portions and a spring seat portion formed integral with said top member, said upper archbar being. adapted. to engage the undersurface of said Web" and spaced from the underlying portions of said strut, and means formed integrally with'the arch bar and web for interlockingly connecting the same. i

5. In a truck side frame, the combination I 3 in with upper and lower arch bars each of which is provided intermediate its ends with a curved portion, of a strut interposed be-' tween said arch bars, said strut having integral top and bottom members, said arch bars being adapted respectively to engage and extend beneath said members, said members havingcurved portions adapted to cooperate with said curved portions of said arch bars and rivet means for connecting said arch bars to the adjacent portions of said strut.

6. In a truck side frame, upper and lower arch bars, a strut interposedbetween and secured to the arch bars, the strut including a channeled top portion within which the upper arch bar lies, and further including columns channel shaped in cross section and having webs and side flanges, the strut further lncluding a spring plank seat, the side 7 flanges of the columns being prolonged downwardly and laterally, and tie bars secured to the strut atthe lower corners thereof and lyinobetween said ,prolongations, the

lower arch bar engaging'beneath the seat portion of the strut, and the strut having the lower ends of its column portions formed with bearing flanges inclined upwardly and outwardly with respect to the webs ofthe columns, said bearing flanges contormingly engaging against the top surface of the lower arch bar.

7. In a truck side frame, upper and lower arch bars, a strut interposed between and,

secured to the arch bars, the strut including a channeled top portion within which the upper arch bar lies, and further including columns channel shaped incross section and having webs and side-flanges, the strut furengaging against the top surface of the lower arch bar, said columns having central vertical webs mer'ging into said bearing flanges and acting to brace the same.

8. In a truck side frame, upper and lower arch bars, a strut'interposed between and secured to the arch bars, said strut including a channel shaped top portion within which the upper arch bar lies and further including columns and a seat portion both channel shaped in cross section, the strut being formed at the center of itsunolerside with a concavity and having curved portions merg- 7 ing into said concavity and extending upwardly, upwardly inclined bearing flanges formed on the columns and constituting continuations of and merging into said curved portions of the bottom, and reinforcing webs for said bearing flanges, the lower arch bar having a curved central portion and other curved portions thereadjacent conformingly engaging against the concavity and the curved bottom. portions of the strut, the

flanges. afiix my signature.

,EMIL, .EISELT.

ingly against said bearin In testimony whereof lower arch bar further engaging conform- 

